diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index 66777e9ea45..c2f63c564ea 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -140,7 +140,7 @@ class PurchaseOrder(models.Model):
     picking_count = fields.Integer(compute='_compute_picking', string='Receptions', default=0)
     picking_ids = fields.Many2many('stock.picking', compute='_compute_picking', string='Receptions', copy=False)
 
-    date_planned = fields.Datetime(string='Scheduled Date', compute='_compute_date_planned', inverse='_inverse_date_planned', required=True, select=True, oldname='minimum_planned_date')
+    date_planned = fields.Datetime(string='Scheduled Date', compute='_compute_date_planned', inverse='_inverse_date_planned', store=True, select=True, oldname='minimum_planned_date')
 
     amount_untaxed = fields.Monetary(string='Untaxed Amount', store=True, readonly=True, compute='_amount_all', track_visibility='always')
     amount_tax = fields.Monetary(string='Taxes', store=True, readonly=True, compute='_amount_all')
diff --git a/addons/purchase/purchase_view.xml b/addons/purchase/purchase_view.xml
index 4f18ba56bc1..026101887f0 100644
--- a/addons/purchase/purchase_view.xml
+++ b/addons/purchase/purchase_view.xml
@@ -274,7 +274,7 @@
                         <page string="Deliveries &amp; Invoices">
                             <group>
                                 <group>
-                                    <field name="date_planned"/>
+                                    <field name="date_planned" required="1"/>
                                     <field name="picking_type_id" domain="[('code','=','incoming')]" options="{'no_create': True}" context="{'special_shortened_wh_name': True}" groups="stock.group_stock_multi_locations"/>
                                     <field name="dest_address_id" groups="stock.group_stock_multi_locations" attrs="{'invisible': [('default_location_dest_id_usage', '!=', 'customer')], 'required': [('default_location_dest_id_usage', '=', 'customer')]}"/>
                                     <field name="default_location_dest_id_usage" invisible="1"/>